Hydrocarbon-burner



(No Model.)

J. S. HULL.

Hydrocarbon Burner.

No. 234,282. Patented Nov. 9,1880.

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- M is similar, except in certain particulars NITED STATES PATENT OFFICE.

JOHN S. HULL, OF BALTIMORE, MARYLAND.

HYDROCARBON-BURNER.

SPECIFICATION forming part of Letters' Patent No. 234,282, dated November 9, 1880.

Application filed May 6, 1880. (No model.) I

To all whom it may concern Be it known that I, JOHN S. HULL, of Baltimore city, State of Maryland, have invented certain new and useful Improvements in Apparatus forBurningHydrocarbons; andlhereby declare the same to be fully, clearly, and exactly described as follows, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of the apparatus, and Fig. 2 is a top-plan view of the burner and its immediate attachments.

My invention has reference to devices for burning volatile hydrocarbon oils; and it consists in an apparatus constructed as hereinafter described and adapted to deliver to a burner a supply of liquid or gaseous hydrocarbon and a jet of steam, superheated or not, together with a quantity of air sufficient to oxidize the carbon as well as the hydrogen, and thus produce a non-luminous flame of intense heat adapted for various uses in the arts, such as brazing, soldering, or melting metals. Being susceptible of being rendered, bya proper relative delivery of gas or oil, air, and steam, aneutral-i. 6., neither an oxidizing nor a reducing flameits adaptability for fusing metals by causing the jet to impinge girectly upon the surface of the metal is evient.

My invention further consists in the peculiar form of burner and the construction, in certain details, of the apparatus, as hereinafter set forth.

In the accompanying drawings, A is a tank for compressed air, communicating by means of the pipe B with the gasoline or oil tank 0. From the latter the oil is fed through the pipes D and E to the burners M and F. The burner which will be pointed out, to that described in Letters Patent No. 162,657, granted to me April 27, 1875, and the burner F is, by preference, of the form shown in Letters Patent No. 226,753, granted to me April 20, 1880. The blast from the burner F enters a jet-pipe, G, and is made to impinge upon the domeshaped or concave bottom of a steam-boiler, H. The exit-pipe I from the boiler has two branches, K and M, of which the former is led in a coil, L, about the jet-pipe G, and thence by means of connections Q R to the burner M. The pipe ll is led in a coil or bend, C, through the gasoline tank 0, as shown in dotted lines.

Such is the general disposition of the apparatus. Referring to certain details of the same and to Fig. 2 of the drawings, the burner M may be said to consist of a central tube, in which the combustion takes place, and an upper and a lower tube, T T, parallel to the combustion-tube, for the passage of the oil. The passages are provided with screw-plugs U U U, which normally close a number of openings, through which access may be had to the passages when it becomes necessary to clean them. The pipe D, which supports the burner M, carries a small cup, N, for a quantity of gasoline, which, being ignited, effects the preliminary heating of the burner. At either side of the burner M is a short tube, S, into which a perforated cap, 0, is screwed. The perforations P supply the burner with air, and the size of the apertures may be readily regulated by screwing the caps O in or out. The steam-pipe L is coupled to a transverse pipe, Q, and has a three-way cock, P, in the joint, so that the steam may be delivered through either or both pipes R, or may be cut off entirely from them. These pipes R open into the side pipes, S, of the burner in an inclined direction to the axis of the same. All of the pipes are provided with suitable cocks, as shown.

In operation the burner M is heated by means of a small quantity of oil, which is poured into the cup N and ignited, the object being to'volatilize the gasoline in transit to the burner, and the gasoline is fed through the pipes l) and E to the burners M and F. This burner consists of a perforated cylinder, into the axis of which is led a jet-tube, through which the gasoline is supplied, which, being vaporized by the heat of the external cylinder, burns with a non-luminous and intensely hot flame. The jet from the burner F causes the water in the boiler H to boil, and a supply of steam is delivered through the pipe I. A part of the steam passes through the coil L, where it is superheated, and passes thence to the burner M, entering the combustion-tube of the latter. Here it mingles with the volatilized and highly-heated hydrocarbon and with the air which enters through the openings P, and the mixed gases burn with an intense heat in the jet-nozzle.

Instead of using a self-generating burner, a supply of fixed hydrocarbon gas may be delivered through the pipe D; and instead of employing the force of compressed air to drive the liquid fuel to the burners I may make use of the steam-pipe M. Upon conducting a supply of steam therethrough a gas will be generated in the tank 0, which, pressing upon the surface of the liquid, will subserve the same end as the compressed air. In this case a suitable regulator will be employed, so as to cut off the steam-supply through the pipe M when a given pressure is reached in the tank C, whereby all danger of exploding the latter is obviated.

What I claim is l 1. The combination, substantially as hereiubefore set forth, of the burner having airinlets provided with valves for regulating the l admission of air, with mechanism for delivering to the burner a hydrocarbon under pressure and a supply of superheated steam, as described.

2. In combination with the self-generating gas-burner M, the oil-tank and boiler, and mechanism, substantially as described, for delivering a supply of hydrocarbon under pressure, all as set forth.

3. In combination with the tanks A and O for air and oil, the burners M and F, boiler H, superheating-coil L, and pipe R, as set forth.

4. The burner M, having lateral air-pipes S, provided with perforated screw-caps O, and steam-pipes It, opening into the air-pipes, whereby an injector'draft is produced, as set forth.

JOHN S. HULL.

Witnesses:

R. D. WILLIAMS, W. A. BERTRAM. 

